RE: 157" Discus Glider
John Bittle
Could you post the PDF that you recieved? My kit had a small paper that said balance at 74mm back, but it was the same paper that came with my 103 inch e-sailplane by the same manufacturer.
The lower tow release looks like it works better than the nose releases that I've used, you seem to be able to get above the two plane easily. I had a ASK-21 by Robenmodel(SP?) with a nose release and it took full up to get above the towplane.
I think I'll use the little slit in the fuse way of doing tow release, but it will be down low. My Alpina has a nose release, it will be an interesting test to see how they compare.